My husband and I have been TTC for 4 months and I've been using OPK's from the beginning. I'm getting positive OPK's every month but no BFP yet! I'm getting discouraged that something is wrong. He has an 8 year old from a previous marriage so I think I may be the issue. I was on the pill for 12 years but am a healthy 26 year old! My OBGYN is saying she won't investigate until the 1 year mark but I don't want to keep wasting time if something is wrong. WTH?!